Chain link



FIG. 1 is a front view of a chain link according to my new design;

FIG. 2 is a back view of the chain link shown in FIG. 1;

FIG. 3 is a left side view of the chain link shown in FIG. 1;

FIG. 4 is a right side view of the chain link shown in FIG. 1;

FIG. 5 is a top view of the chain link shown in FIG. 1;

FIG. 6 is a bottom view of the chain link shown in FIG. 1; and,

FIG. 7 is a top frontal perspective view of the chain link shown in FIG. 1.

The broken lines depict portions of the chain link that form no part of the claimed design. 

The ornamental design for a chain link, as shown and described. 